<table style="border: 1px solid red">
<thead>
<tr>
<td>Header stays put, no scrolling</td>
</tr>
</thead>
<tbody id="tbodyMain" style="display: block; border: 1px solid green; height: 30px; overflow-y: scroll">
<tr>
<td>cell 1/1</td>
<td>cell 1/2</td>
</tr>
<tr>
<td>cell 2/1</td>
<td>cell 2/2</td>
</tr>
<tr>
<td>cell 3/1</td>
<td>cell 3/2</td>
</tr>
</tbody>
</table>
Javascript Section
<script>
$(document).ready(function(){
var maxHeight = Math.max.apply(null, $("body").map(function () { return $(this).height(); }).get());
// alert(maxHeight);
var borderheight =3 ;
// Added some pixed into maxheight
// If you set border then need to add this "borderheight" to maxheight varialbe
$("#tbodyMain").css("min-height", parseInt(maxHeight + borderheight) + "px");
});
</script>
please, refer How to set maximum possible height to your Table Body
Fiddle Here